Air quality in Canada
Air quality index (AQI⁺) and PM2.5 air pollution in Canada • 01:28, Oct 02
Government of Ontario, Ministry of the EnvironmentAlberta Environmental Monitoring, Evaluation and Reporting Agency (AEMERA)City of Montreal - Official Air Quality Monitoring PortalMinistry of the Environment and the Fight against Climate ChangeOklahoma Department of Environmental Quality Metro VancouverMarten LettingaCanada-Nova Scotia1Environment and Local Government of New BrunswickUniversity of Northern British ColumbiaMichigan Department of Environment, Great Lakes, and Energy (EGLE)Kelly BerntsonRobertMendocino County AQMDGovernment of SaskatchewanAnonymouslouisvCalifornia Air Resources Board (CARB)G-ZLXNJanonymous contibutorNiall PlattsrawqakeithzgDonToughBC Lung FoundationMallowAnonymousJim GuilletNational Air Pollution Surveillance ProgramPiéEVCOjenny whitfield**computeruserRaymond McManitoba GovernmentACHamilton Air Monitoring Network - HAMNSouth RichvaleParkland Airshed Management ZoneCypress MountainMecklenburg County Air QualityElectric Vehicle Council of OttawaBeaton Rettich WatersWoody NelsonStephan WehnerPAS Palliser Airshed SocietyClanYoungEco-Nature / Site de la Berge du Garrot-LavalDGEC - GreensvilleGalactic Monitoring Newfoundland & Labrador Department of Environment and Climate ChangeWest Central Airshed SocietyWood Buffalo Environmental AssociationVille de Thetford MinesNew York State Department of Environmental Conservation (NYSDEC) Canada-Prince Edward Island1Hydro MeteoCamp YowochasDataforge CanadaThe Clean Energy ShowFort Air PartnershipWildflower Bee Farm Ontario and Nova ScotiaDavid Russell-LoewenClean Air PlanBBT Batteries Ltd.Antiquités de l’île et Ferme Au goût d’autrefoisPeace Airshed Zone Association (PAZA)BC Lung FoundationPSC_SudBC HydroHay Lakes SchoolBC Hydro RevelstokeAera CabinsFolarin Solademi (University Manitoba)MattTim Van DamAnonymous contributor
3 stations sponsored by The Foundation for Clean Air
Government of Ontario, Ministry of the EnvironmentAlberta Environmental Monitoring, Evaluation and Reporting Agency (AEMERA)City of Montreal - Official Air Quality Monitoring PortalMinistry of the Environment and the Fight against Climate ChangeOklahoma Department of Environmental Quality Metro VancouverMarten LettingaCanada-Nova Scotia1Environment and Local Government of New BrunswickUniversity of Northern British ColumbiaMichigan Department of Environment, Great Lakes, and Energy (EGLE)Kelly BerntsonRobertMendocino County AQMDGovernment of SaskatchewanAnonymouslouisvCalifornia Air Resources Board (CARB)G-ZLXNJanonymous contibutorNiall PlattsrawqakeithzgDonToughBC Lung FoundationMallowAnonymousJim GuilletNational Air Pollution Surveillance ProgramPiéEVCOjenny whitfield**computeruserRaymond McManitoba GovernmentACHamilton Air Monitoring Network - HAMNSouth RichvaleParkland Airshed Management ZoneCypress MountainMecklenburg County Air QualityElectric Vehicle Council of OttawaBeaton Rettich WatersWoody NelsonStephan WehnerPAS Palliser Airshed SocietyClanYoungEco-Nature / Site de la Berge du Garrot-LavalDGEC - GreensvilleGalactic Monitoring Newfoundland & Labrador Department of Environment and Climate ChangeWest Central Airshed SocietyWood Buffalo Environmental AssociationVille de Thetford MinesNew York State Department of Environmental Conservation (NYSDEC) Canada-Prince Edward Island1Hydro MeteoCamp YowochasDataforge CanadaThe Clean Energy ShowFort Air PartnershipWildflower Bee Farm Ontario and Nova ScotiaDavid Russell-LoewenClean Air PlanBBT Batteries Ltd.Antiquités de l’île et Ferme Au goût d’autrefoisPeace Airshed Zone Association (PAZA)BC Lung FoundationPSC_SudBC HydroHay Lakes SchoolBC Hydro RevelstokeAera CabinsFolarin Solademi (University Manitoba)MattTim Van DamAnonymous contributor
3 stations sponsored by The Foundation for Clean Air
Live most polluted city ranking
Real-time Canada most polluted city ranking
| # | Cities | AQI⁺ US | |
|---|---|---|---|
| 1 |  Etobicoke | 95 | |
| 2 | East York | 74 | |
| 3 | Hochelaga | 74 | |
| 4 | Burlington | 69 | |
| 5 | Oshawa | 68 | |
| 6 | Hamilton | 66 | |
| 7 | Mississauga | 66 | |
| 8 | Quebec | 66 | |
| 9 | Toronto | 65 | |
| 10 | Oakville | 64 |
2025 Canada most polluted city
| Flin Flon, Manitoba | 79 |
Live cleanest city ranking
Real-time Canada cleanest city ranking
| # | Cities | AQI⁺ US | |
|---|---|---|---|
| 1 | Fort McMurray | 6 | |
| 2 | Uxbridge | 6 | |
| 3 | Headingley | 7 | |
| 4 | Bowen Island | 8 | |
| 5 | Halfmoon Bay | 8 | |
| 6 | Princeton | 8 | |
| 7 | Sicamous | 8 | |
| 8 | Powell River | 9 | |
| 9 | Coquitlam | 10 | |
| 10 | Moncton | 10 |
2025 Canada cleanest city
| Bedford, Nova Scotia | 12 |
2025 Canada air quality
2025 country air quality average
How polluted is Canada?
In 2025 in Canada, the annual PM2.5 concentration was 1.5 times the WHO annual PM2.5 guideline.
2025 AQI⁺ country ranking
Which country had the worst air quality in 2025?
Worldwide PM2.5 ranking
2025 Canada global rank in air pollution
117/143
Wildfires in Canada
Real-time information
Active fires
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